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  1. #1
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    gt i drive 5 4.0 new crank and bottom bracket what to buy

    Hi im new to this forum and new to biking well not new but its been 25 years lol .Thought it would be a good way to get fit . Ok now for the bike I got it second hand and have now been riding it everyday for a week I have found it has some play n the bb and I would like to change the crank.But what size what type would be best im going to be doing light xc and some dh help would be appreciated thanks .

  2. #2
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    Congrats on your new GT swift. You might want to take a look at the Sanction and Force reference thread. The I-D 5, are very similar to these bikes. I would say something around the Shimano XT level and some of the all mountain Race Face cranks should be what you're looking for. Make sure the play is the BB and not the suspension. There are countless posts on the thread I mentioned to help you out with the suspension stuff.
    2009 GT Marathon Team,GT Force 2.0, GT Jelly Belly TT (nude carbon), and a very special Todd Wells Zaskar.

  3. #3
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    It will need a 68mm bottom bracket with a 50mm chain line.
    I put a raceface chester crank that comes with a team DHx type BB. It fits well and was inexpensive.
    Make sure the dog bone is unattached when removing the old BB and use medium blue thread lock when u put the dog bone back on.

  4. #4
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    thanks for your reply's I will have an look now

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